The 2026 property tax bills went out in late May, and within a week I started getting the same message from past clients and people around my SW Calgary communities. Some version of “my assessment jumped, my bill is up almost eight per cent, what’s going on, and is my house actually worth that now?” It’s a fair question, and the honest answer has three separate parts that get tangled together every spring.
So let me take them one at a time. What your assessment measures. Why your bill went up more than the City’s own tax increase. And the part I care about most as a realtor: why the number on that notice is not what your home would sell for, in either direction. Get those three straight and the bill stops being something to panic over and starts being something you can read.
How the City decides your assessment
Your property assessment is the City of Calgary’s estimate of your home’s market value on one specific date. For the 2026 assessment, that date is July 1, 2025, with the physical condition of the property fixed as of December 31, 2025. That timing matters and almost nobody knows it, so hold onto it: a 2026 assessment is a snapshot of last summer’s market, not today’s.
The City does not send an appraiser to walk through 600,000 homes. It uses mass appraisal, a market-value standard required under Alberta’s Municipal Government Act, which models sale prices across the city against property characteristics like size, age, lot, location, and condition. It is built to be fair and equitable across hundreds of thousands of properties at once, not to be precise on any single one. On January 14, 2026, the City mailed out more than 614,000 of these notices. The bill you opened in May is the tax that flows from that January number.
The 2026 numbers, in plain terms
Here is the headline most people missed under the sticker shock. The typical Calgary home’s market value, as the City measures it, rose only about one per cent for 2026. The median single residential assessment moved from $697,000 in 2025 to $706,000 in 2026. After a run of years where assessments climbed double digits, including roughly 15 per cent the year before, 2026 is close to flat.
It is not flat everywhere, and that is the part worth understanding. Detached homes (single residential) came in around that one per cent typical change. Condominiums fell, with the median condo assessment dropping from $359,000 to $347,000, about three per cent down. If that split sounds familiar, it should: it is the same two-speed market I wrote about in detached holding while condos soften, showing up now in the City’s assessment roll rather than in listing data.
Why your bill jumped more than your assessment did
This is what trips most people up. Your assessment went up about one per cent, but your bill went up roughly eight. Those are two different machines.
A property tax bill in Calgary has two parts. The municipal portion funds the City: police, fire, transit, roads, parks, snow. For a typical home that part rose about 1.8 per cent in 2026, which works out to roughly $49 more for the year. The City has pointed out, fairly, that this is the lowest municipal increase among major Canadian cities this year.
The second part is the provincial education tax. The City only collects it; the province sets it. For 2026 the province raised its education requisition sharply, and on a typical home that portion climbed about 21 per cent, or roughly $338 for the year. Put the two together and the typical Calgary homeowner’s total bill rose about eight per cent, or close to $390. So the large number on your bill is mostly the province’s line, not the City’s, and almost none of it is your assessment going up.
There is one more wrinkle worth naming. Even within the municipal portion, your share can shift if your home’s assessment rose more than the citywide average. Property tax is a way of dividing a fixed pie. If your place went up more than your neighbours’, you carry a slightly bigger slice even when the overall rate barely moves. That’s why two homes on the same street in Killarney can see different percentage changes in the same year.
Your assessed value is not your market value
Here is where it matters to me as a realtor, and where I spend the most time correcting assumptions. People treat the assessed number as what their home is worth. It is not, and the gap runs both directions.
Remember the dates. A 2026 assessment reflects the market as of July 1, 2025, modelled by mass appraisal across the whole city. A buyer making an offer this month is pricing your home as of right now, on its specific condition, finishes, and the handful of genuinely comparable sales in your community in the last few months. Those are different questions answered with different tools. I regularly see homes sell well above their assessed value because they are renovated, or sit on a better lot, or the local market moved since last summer. I also see homes assessed higher than they would realistically sell for, usually because mass appraisal cannot see the dated kitchen or the busy road. I dug into why the various automated estimates disagree in why your Calgary home valuation tools all give different numbers, and the assessment is just one more model on that list, with the added quirk that it is anchored to a date almost a year in the past.
If you want the full version of how assessed and market value pull apart, and why neither the City nor a website knows your home the way a pricing analysis does, I wrote a companion piece on assessment versus market value.
”I think my assessment is too high.” What you can do about it
First, a hard piece of timing that catches people every year. The window to formally challenge your 2026 assessment has already closed. Assessment notices went out January 14, and the complaint deadline was March 23, 2026. We are well past that now. So for the 2026 tax year, the number is locked.
That does not mean you are powerless, it means the work is for next January. Here is how the process runs, so you are ready when the 2027 notice arrives. When your notice lands in January, you get a Customer Review Period of 67 days. This is the stage that matters most and the one people skip: you can contact a City assessor directly, ask how they valued your home, and point out anything they got wrong, a finished basement that is not finished, a lot smaller than recorded, a comparable that is not comparable. Most concerns that have merit get resolved right here, without a formal fight.
If that does not resolve it, you can file a formal complaint with the Assessment Review Board before the deadline printed on your notice. The filing fee for a typical home is $50, reduced to $40 if you file before the end of January, and it is refunded if your complaint succeeds. Note what you are challenging: you are arguing the assessed market value is wrong or that you are assessed unfairly relative to similar homes, not that your taxes are too high. The Board cannot change the tax rate. It can only correct the assessment.
What this means if you are thinking about selling
If selling is on your mind this year, the practical takeaway is simple. Do not price off your assessment, in either direction. I have watched sellers anchor their hopes to a high assessment and overprice into a market that had already moved, and I have watched sellers undervalue a renovated home because the City’s number was conservative. Both leave money on the table.
The assessment is useful as one input and a sanity check. What it cannot tell you is what a buyer will pay for your specific home, in your specific community, in this month’s market. That takes a real pricing analysis built on recent comparable sales, not a citywide model anchored to last July. If your assessment surprised you and you are wondering what it means for your sale price, that is exactly the gap a proper valuation closes.
Want to know what your home is actually worth in 2026?
Your assessment is a model anchored to last summer. I'll put together a real pricing picture from recent comparable sales in your community, so you know your number before you make any decisions. It takes about two minutes to start.
Frequently asked questions
Does a higher property assessment mean my Calgary taxes go up?
Not directly, and not by much on its own. Your tax bill is driven mainly by the tax rates set by the City and the province, not by your assessment moving. A higher assessment only shifts your share of the total if your home rose more than the citywide average. In 2026 the typical assessment changed about one per cent, while the typical bill rose about eight per cent, almost all of that from the provincial education tax rather than from assessments.
Why did my 2026 bill rise about 8 per cent when the City raised taxes only 1.8 per cent?
Because the bill has two parts. The municipal portion, which funds City services, rose about 1.8 per cent, roughly $49 on a typical home. The provincial education portion, which the City only collects on behalf of the province, rose about 21 per cent, roughly $338. Combined, the typical homeowner’s total bill went up close to eight per cent, around $390. Most of the increase is the provincial line.
Can I still appeal my 2026 Calgary property assessment?
No. The 2026 complaint deadline was March 23, 2026, so that window has closed. The number is set for the 2026 tax year. You can prepare to challenge the 2027 assessment when notices are mailed in January: use the 67-day Customer Review Period to raise concerns directly with a City assessor, and file a formal complaint with the Assessment Review Board before the deadline if it is not resolved.
Is my assessed value what my home is worth?
No. Your 2026 assessment estimates market value as of July 1, 2025, using a citywide mass-appraisal model. A buyer prices your specific home today, on its actual condition and recent comparable sales in your community. Homes routinely sell above or below their assessed value. Treat the assessment as one reference point, not as your sale price.
How do I challenge my Calgary assessment next year?
When your notice arrives in January, open it right away and compare the City’s value of your home to assessments on similar properties in your community. If yours looks out of line, contact a City assessor during the 67-day Customer Review Period, which is free and resolves most legitimate concerns. If it is still wrong, file a complaint with the Assessment Review Board before the printed deadline. The fee is $50, or $40 if filed before the end of January, and it is refunded if you succeed.
The short version
Open the bill, take a breath, and read it in three parts. Your assessment barely moved. The City’s piece is small. The big jump is the provincial education tax, set in Edmonton. And none of those numbers is what your home would sell for today. If your assessment surprised you and you want to understand what it actually means for your home’s value, or you’re weighing a sale and want a real number instead of a model, that’s the kind of call I take all the time.
Not sure what your assessment means for your sale?
Send me your community and a bit about your home, and I'll give you a straight read on what it would realistically sell for right now, not what last summer's assessment says.
Figures reflect the City of Calgary’s 2026 assessment roll and 2026 tax year. Sources: City of Calgary, 2026 Assessment Roll Highlights; City of Calgary, Property tax changes; City of Calgary, Customer Review Period; Calgary Assessment Review Board. This article is general information for Calgary homeowners and is not tax or legal advice; confirm current figures and deadlines on your own assessment notice and at calgary.ca.
